args uses the same json format as the json rpc api.
gas_cap defines the default gas cap to be used.
proposer_address of the requested block in hex format.
chain_id is the eip155 chain id parsed from the requested block header.
GET /ethermint/evm/v1/estimate_gas HTTP/1.1 Host: zetachain.nownodes.io Accept: */*
A successful response.
{ "gas": "text", "ret": "Ynl0ZXM=", "vm_error": "text" }